Scheduling with time clock controls turns lights on and off, sets lighting levels for different times of day and changes the lighting profile for after-hours mode. More sophisticated systems also respond to signals sent from external control devices such as sensors or switches.
Paraffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.araffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.
1 Paraffin wax, a white or colourless soft solid that is used as a lubricant and for other applications. 2  Alkane, a saturated hydrocarbon.3  Kerosene, a fuel that is also known as paraffin.4  Tractor vaporising oil, a fuel. Liquid paraffin (medicinal) , a very highly refined mineral oil used in cosmetics and for medical purposes. 2  Mineral oil, any of various colorless, odorless, light mixtures of alkanes in the C15 to C40 range from a non-vegetable (mineral) source, particularly a distillate of petroleum.